This is the Spektrum AR6300 DSMX Nanolite 6-Channel Receiver. When it comes to lightweight 3D foamies, micro helicopters and indoor slow flyers, every ounce you can eliminate means improved performance and increased flight times. Weighing in at 2 grams, the Spektrum AR6310 Nanolite is the perfect receiver for these applications. Not only because it's small, but because it gives you the superior response and interference protection of the Spektrum DSMX technology. Its JST connecters are compatible with the Spektrum programmable DSP60J Digital Super Sub-Micro Servo, the 2.5-gram A2010 Ultra Micro Servo, and the 4.3-gram A2020 Nanolite Servo. Includes one Ultra Lightweight JST adapter (SPMAJST1UL).